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Scientists find stem cell switch

Scientists have discovered how plant stem cells in roots detect soil structure and whether it is favourable for growth. Poor soil structure is a problem in tropical agriculture, where soil becomes compact as it dries out. Professor Liam Dolan, of the John Innes Centre in Norwich, UK and his team determined that the plant hormone ethylene regulates cell division in root stem cells.

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Keywords: scientists, stem, cell, switch, scientist

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Similar news on "Scientists find stem cell switch":

1. Detailed 3-D image catches a key regulator of neural stem cell differentiation in action
   12-07-2006 · EurekAlert!
   Researchers at the Salk Institute for Biological Studies in collaboration with scientists at the University of California, San Diego took a high resolution "action shot" of a protein switch that plays a crucial role in the development of the nervous system. Their findings, published in the December 8 issue of the journal Molecular Cell, provide a template for the design of small molecule inhibitors to control that switch, a protein called Scp1, at will.
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2. UCI launches effort to develop patient-specific stem cell lines
   05-14-2007 · EurekAlert!
   UC Irvine neurobiologist Hans Keirstead and his research team today launched a project to develop stem cell lines that genetically match human patients. These lines would allow scientists to better study conditions ranging from diabetes to Parkinson's disease, and they would provide the basis for potential patient-specific stem cell treatments.
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3. Team of scientists develops non-invasive method to track nerve-cell development in live human brain
   11-08-2007 · EurekAlert!
   A team of scientists including researchers at Cold Spring Harbor Laboratory have identified and validated the first biomarker that permits neural stem and progenitor cells to be tracked, non-invasively, in the brains of living human subjects. This important advance could lead to significantly better diagnosis and monitoring of brain tumors and a range of serious neurological and psychiatric disorders.
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4. Scientists identify switch for brain's natural anti-oxidant defense
   10-19-2006 · EurekAlert!
   Scientists at Dana-Farber Cancer Institute report they have found how the brain turns on a system designed to protect its nerve cells from toxic "free radicals," a waste product of cell metabolism that has been implicated in some degenerative brain diseases, heart attacks, strokes, cancer and aging.
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5. When smell cells fail they call in stem cell reserves
   04-29-2007 · EurekAlert!
   Hopkins researchers have identified a backup supply of stem cells that can repair the most severe damage to the nerves responsible for our sense of smell. These reservists normally lie around and do nothing, but when neighboring cells die, the scientists say, the stem cells jump into action. A report on the discovery will appear online next week in Nature Neuroscience.
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6. Neural stem cell study reveals mechanism that may play role in cancer
   09-04-2007 · EurekAlert!
   In the dynamic world of the developing brain, neural stem cells give rise to neurons deep within the brain’s fluid-filled ventricles. These newborn neurons then migrate along the stem cell fibers up to the neocortex, the seat of higher cognitive functions. Now, scientists have discovered a key mechanism of this migration -- one that may also play an important role in other developmental processes and diseases, including cancer.
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7. Scientists overcome obstacles to stem cell heart repair
   12-12-2007 · EurekAlert!
   Scientists have overcome two significant obstacles on the road to harnessing stem cells to build patches for damaged hearts. Presenting the research at a UK Stem Cell Initiative conference the researchers will explain how they have made significant progress in maturing beating heart cells derived from embryonic stem cells and in developing the physical scaffolding that would be needed to hold the patch in place in the heart in any future clinical application.
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8. Jefferson scientists uncover role of cancer stem cell marker: controlling gene expression
   01-17-2008 · EurekAlert!
   Scientists at Jefferson's Kimmel Cancer Center in Philadelphia have made an extraordinary advance in the understanding of the function of a gene previously shown to be part of an 11-gene "signature" that can predict which tumors will be aggressive and likely to spread. The gene, USP22, encodes an enzyme that appears to be crucial for controlling large scale changes in gene expression, one of the hallmarks of cancer cells.
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9. Gene Key To Taste Bud Development Identified
   10-02-2006 · ScienceDaily
   Scientists have identified a gene that controls the development of taste buds. The gene, SOX2, stimulates stem cells on the surface of the embryonic tongue and in the back of the mouth to transform into taste buds, according to the researchers. Stem cells are immature cells that can develop into several different cell types depending on what biochemical instructions they receive.
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10. Stem cells get a grip
    12-14-2006 · EurekAlert!
    At the American Society for Cell Biology's 2006 conference, scientists will describe how live cell imaging has revealed the very close relationship of hematopoietic stem cells and osteoblasts in the stem cell niche.
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